docs: added missing ids
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@ -149,6 +149,7 @@ field data format.
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Computes and stores field data data-structures on disk at indexing time.
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Computes and stores field data data-structures on disk at indexing time.
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[float]
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[float]
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[[global-ordinals]]
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==== Global ordinals
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==== Global ordinals
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Global ordinals is a data-structure on top of field data, that maintains an
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Global ordinals is a data-structure on top of field data, that maintains an
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@ -182,6 +183,7 @@ ordinals is a small because it is very efficiently compressed. Eager loading of
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can move the loading time from the first search request, to the refresh itself.
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can move the loading time from the first search request, to the refresh itself.
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[float]
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[float]
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[[fielddata-loading]]
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=== Fielddata loading
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=== Fielddata loading
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By default, field data is loaded lazily, ie. the first time that a query that
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By default, field data is loaded lazily, ie. the first time that a query that
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@ -35,11 +35,11 @@ Parent/child queries (`has_child` & `has_parent`) can't be used in index aliases
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==== Global ordinals
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==== Global ordinals
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Parent-child uses <<index-modules-fielddata-global-ordinals,global ordinals>> to speed up joins and global ordinals need to be rebuilt after any change to a shard.
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Parent-child uses <<global-ordinals,global ordinals>> to speed up joins and global ordinals need to be rebuilt after any change to a shard.
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The more parent id values are stored in a shard, the longer it takes to rebuild global ordinals for the `_parent` field.
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The more parent id values are stored in a shard, the longer it takes to rebuild global ordinals for the `_parent` field.
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Global ordinals, by default, are built lazily: the first parent-child query or aggregation after a refresh will trigger building of global ordinals.
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Global ordinals, by default, are built lazily: the first parent-child query or aggregation after a refresh will trigger building of global ordinals.
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This can introduce a significant latency spike for your users. You can use <<index-modules-fielddata-fielddata-loading,eager_global_ordinals>> to shift the cost of building global ordinals
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This can introduce a significant latency spike for your users. You can use <<fielddata-loading,eager_global_ordinals>> to shift the cost of building global ordinals
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from query time to refresh time, by mapping the _parent field as follows:
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from query time to refresh time, by mapping the _parent field as follows:
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==== Memory usage
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==== Memory usage
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